-
the first radio signal
maxwell predicts he used a radio wave -
Period: to
next
-
hughes
demonstrates the first working morse code -
fessenden makes the first radioactive transmission
makes the first radioactive transmission -
KDKA
begins to broadcast first radio brodcast -
Period: to
golden age for the radio
The Great Depression drove down the average price of a radio sold in United States from $139 in 1929 to about $47 just four years later. But the brutal market forces of the early depression did not stop Americans from buying radios; by the end of the 1920s, one third of U.S. households owned a radio and by 1933 that number climb close to 60%. -
first car with radio
The Galvin brothers’ expensive $130 unit (a Model A Deluxe coupe cost $540) was the first commercially successful car radio, and the first product to wear the Motorola name. -
first fm radio
-
tv became introduced
-
first car with FM
AM was the undisputed king of the airwaves in 1952, but that didn’t stop Blaupunkt from introducing the first in-car FM radio. -
Period: to
tv became popular